Segmented Mounting Block for Rotary Drum Bite Adjustment

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Solution Overview

Problem

There is a continuing need for comminuting apparatus that allows for the variation of the bite of the reducing element attached to a rotary drum, as existing solutions do not provide sufficient flexibility in adjusting the cutting mechanism for different materials and applications.

Innovation Solution

A mounting block with two rows of through-holes that can be mounted in multiple positions on the rotary drum, allowing the reducing element to be attached at different heights, thereby varying the bite size by changing the mounting position of the block and the reducing element between top and bottom surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single fixed mounting position is used for the reducing element, then the device structure is simple, but the adaptability to different materials and bite sizes is limited

Engineering Contradiction:

Improvebite size adjustment rangeVSAvoidmounting block structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mounting block is segmented into multiple mounting positions with distinct rows of through-holes at different distances from the top and bottom surfaces. This segmentation allows the reducing element to be mounted at various heights, providing different bite sizes while maintaining a relatively simple overall block structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting block is designed with multiple through-holes that serve universal mounting functions. The same block structure can accommodate reducing elements at different positions to handle various materials and bite size requirements, making the device multi-functional without requiring multiple specialized components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple mounting positions are provided to vary bite size, then the adaptability increases, but the device complexity increases

Engineering Contradiction:

Improvematerial handling rangeVSAvoidmounting block configuration

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mounting block employs asymmetric hole positioning where the first row of through-holes is at a first distance from the top surface and the second row is at a second distance from the bottom surface. This asymmetric configuration provides varied bite sizes while maintaining a straightforward block design without complex adjustment mechanisms.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentEP2799142B1Mounting block for attaching a reducing element to a rotary drum

Publication Date: 2020.01.01 VERMEER MFG CO

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AI summary

Mounting blocks for attaching reducing elements to a rotary drum of a comminuting apparatus are disclosed. The mounting blocks may be mounted in multiple positions to vary the bite of the reducing elements of the rotary drum.